Bad reviews often correlate with how well sequels end up doing, not just how well the original movie does. Batman Begins is one example, it did poorly at the box office (~350 million), probably the legacy of Batman and Robin. But word of mouth built over several years that "actually, it was really good", then when Dark Knight came out, 1 billion dollars. Tomb Raider is the opposite case.

Marvel is building a franchise. Every good movie helps their future films make profits, and every bad movie undermines that effort.